Spray-pole device



J. MEssMgR lSPRAY POLE DEVICE Jan. I4, 1930.

Filed June 12. 1928 Patented Jan. 14, 1930 UNITED STATES PATENT-trice JOSEPH MESSMER, OF ST. LOUIS, MISSOURI, ASSIGNOR TO MESSMER BRASS COMPANY, OF ST. LOUIS, MISSOURI, A CORPORATION OF MISSOURI SPRAY-POLE DEVICE Application filed June 12, 1928. Serial N0. 284,682.

vide a spray pole of this character that has a curved tubular part adjacent t-o the nozzle, so that it can direct its spray or stream in all horizontal directions by merely rotating the handle portion about its longitudinal axis.

Another object of the invention is to provide a device of this kind with an improved dual controlling device which serves to adjust the spray-valve and to actuate a cut-oft1 valve, which latter permits the spray-nozzle,

or spray-valve, or both, to be dismembered and cleaned or repaired, without stopping the supply-pump (not shown) that forces the spraying liquid into the spray-pole under high pressure.

-Another object is to provide a device of this kind that has approximately all its working parts protected within the hollow body of the device ,so such working parts will not become entangled with the boughs or leaves of the trees being sprayed.

Another object is to provide a device of this kind that is made up of a number of separable and originally separate parts that are of such construction that they are easily and cheaply manufactured and assembled and disassembled, but which are united in a compact and convenient unit which can be attached to any ordinary hollow handle member through which the spraying liquid is forced by the pressure-pump (not shown).

Other objects and' important features are pointed out or implied in the following details of description, in connection with the accompanying drawings in which:

closure or adjustable valve member which is shown in section in Figure 1.

Figure l is a top plan view of the disk through which the valve closure passes.

Figure 5 is a sectional view along the line 5 5 of Figure 4. j

'Referring to these drawings in detail, in which similar reference characters correspond to similar parts in the several views, the invention will now be described in detail as follows: i

The main body'member of the unit shown in Figure 1 may properly be considered a tubular passage or conduit through which the spraying Huid passes. This member includes separately` formed members 5, 6, 7, 8, 9, 10, 11, 12, 13 and 14. Y Y These members are preferably of metal which is of such character that it is not affected by the chemicals in the liquids which are used for spraying trees.Y The parts, 5, 6, 7, 8, l0 and 11 are preferably castings which are separately formed and machined to give them their respective shapes which permit them to be united with oneanother in the relation shown. In this connection, it is pointed out that the parts 5 and 6 are in screw threaded engagement with one=another at 15, the parts 6 and 7 being in screw threaded engagement with one another at' 16, the parts 6 and 8 being in screw threaded engagement with one another at 17, the parts 6 and 9 being in screw threaded engagement with one another at 18, and the parts 9 and 10 being in screw threaded engagement with one another at 19, and the parts 10 and 11 being in screw threaded engagement with one another at 20. In consequence of these separately formed parts being thus united in screw threaded engagement with one another, they can be quickly and easily disassembled;

or any one of the parts 5, 7, 8, 9 or 11 can be (fluickly and easily unscrewed and removed or gaining access to the interior of the conduit, for cleaning, repairing or replacing any of the interior partsk of the device. Moreover, the member 5 is provided with screw threads at 21 for threadedengagement with a tubular handle member 22, a part of which is shown in Figure 2, and which may be connected to a force pump or any other appropriate means for forcing the spraying liquid into and through the unit which is shown in Figure 1. Y

Suitable packings or gaskets may be provided at 23 and 24 to prevent leakage.

Thev parts 10, 11, 12, 13., 14 and 24 combine to form aunitary nozzle member which connects to the bettube 9, as shown at 19, and it will be seen that the parts 11, 12 and 13 have central openings therethrough at 25, 26 and 27, respectively, the latter opening being upwardly convergent. The opening 2G is so small that it might be termed miniature, asrcompared with the openings 25 and 27,

' for the opening 25 is so large as to provide a wideclearance around the opening 26, and forms the inner edge of the retaining fiange 11a which bears upon the relatively thin disk 12 and reenforces Vit so thatA the pressure of the liquid will not detrimentally distort it. The relative thinness of the disk 12 and the relatively smallness of thel outlet opening 26 are important features in obtaining the variations from a wide and fine fog-mist, to a narrow, strong and far-reaching spray of spraying liquid. The removal of the disk 12 is often necessaryfor unstopping its aper-v ture 26, and its removal and replacement are quicklyv and easily accomplished by removing the nozzle-cap 11, removing the gasket 24 therefrom; and then, after removing the disk 12, and unstopping its aperture 26replacing it on the flange 113, replacing the gasket 24, and finally replacing the cap. 11 on the nozzle-body 10.V Before'removing the nozzle-cap, it is necessary to either stop the force pump from forcing the liquid through the device, or close the conduit at a point between the force pump and the nozzle. The latter procedureis preferable, for it is usual to have a number of spray poles connected to the sameforce pump and operating at the` same time; and by merely closing one of these conduits -or spray poles, the others are not affected, but can continue to operate while such replacement is being effected. However,

before describing the means for closing the conduit between the nozzle and theV force pump, a description of the valve closure member (Figure 3) and its operation will be de- Y `scribed. as follows:

The referencecharacter 28 refers to this we member as a whole. It includes three separately formed parts 29, 30 and 31. The part 29 includes an externally screw threaded element with which the internal screw thread of the tubular member 30 is removably engaged. The outer end of the member 30 is preferably formed with an outwardly tapered inner surface 32 against which the outwardly converging outer surface of the member 30 tits tightly', being held in place by the out.- wardly converging inner wall and by the screw threaded stud of the member 29. However, by unscrewing and removing the member 30 from the member 29, the valve member may be removed .and replaced by a new one in a manner which is obvious. This is also an important feature of the invention for the force and chemical action of the liquid tends to cut away the outer end of vthe member 30, and the effectiveness and efiiciency are impaired when the member 31 has thus been cut' away. The member 28 is formed with a centralbore 33 and with one or more longi-v tudinal slots 34, these slots extending beyond the central bore 33 at the outer end, and termina-ting at the base of the screw threaded stud, the said bore being closed at said outer end by the material kwhich constitutes the base of the screw threaded stud; but the bore 33 extending entirely to the inner end of the member 28, past the inner ends of the slots 34. The metal portions between the slots 34 have arcuate outer surfaces which fit closely, but loosely and slidingly against the inner surface of the bent tube 9, which latter, however, has a straight portion 9 adjacent to the nozzle, so the straight longitudinal elements 28a of the member 28 can slide straight inwardly and outwardly so as to move the-valve member 31 to and from the disk 24, so as to close the outlet 26, and also to open the outlet. The opening 27 is provided with com- Y municating obliquely disposed notches 27a through which the spraying liquid passes to the disk 12 and whirls until it reaches the aperture 26. Moreover, the member 28 can be moved inward far enoughto open the main circular part of the opening 27 land when this is done, the` greater part of the liquid passes straight through the main central opening 27, thereby lessening the force of the liquid through the notches 27a, and minimizing the whirling action of the liquid, so the liquid now passes forcefully and straight through the outlet opening 26, and

forms a long, narrow cone spray which goes bined crank and cam member which includes a cam-disk 40,'the latter having a concave or depression 4l. The cam-disk 40 is centrally apertured to receive a reduced inner part of a cylindrical shank 42 which has a handle 43 secured on its outer end. A screw 44 or other appropriate securing means may be employed for securing the members 40 and 42 in rigid relation with one another, so the member 39-40 is operable by means of the members 42 and 43. rIhe member 42 extends through a stuffing box formed on the member 6 and covered by the member 8. Any appropriate packing 45 in the stuffing box prevents leakage therethrough.

From the foregoing description, it is seen that by turning the handle 43 a sufficient distance, the wire or connecting link 37 will first be stretched from the bowed position shown, which bowed position permits the valve member to move further and further outward as the member 3l wears away. However, the swing of the crank-pin 39 is suficient to open the valve-opening 27 after the wire 37 is stretched thereby. The packing around the shank 42 frictionally holds the member 39-40 in its adjusted positions, notwithstanding the combined pressure of the fluid and the spring 46, which tends to force the valve member 28 outward. 'Ihe spring 46 is seated against a shoulder which is formedby a ring 47 secured in the tubular member 9 by means of a pin 48. The spring 46 holds the nozzlevalve normally closed, regardless of the absence of pressure of the liquid.

For the purpose of closing the conduit between the nozzle and the source of pressure of the liquid, a valve-seat 49 is formed at the lower end of the member 6, a guiding element 50 is formed in said member 6, and a second guiding element 5l is formed in the member 5. A valve stem 52 has its upper end rounded or convexed, its lower end reduced to slidingly lit in the guide 51, and its intermediate part provided with a shoulder 53 against which is seated a valve-closing element 54, the latter being held in place by means of a flanged nut 55 which is internally screw threaded and engaged with an externally screw threaded part of the shank52, as shown at 56. It will be seen, by referring to Figure 2, that the parts 50 and 51 are narrower than the interior of the respective adjacent parts of the conduit, so passages are provided on opposite sides thereof, and the liquid can flow past these parts and through the valve-seat 49 when the valve 52-54-55 is held open as shown in Figure l. However, the pressure of the liquid tends to force this cut-off valve to the closed position, while the cam-disk 40 holds it open at all times except when the handle 43 is inverted from the position shown in Figure l, at which time, the radial depression 41is inverted, and the valve closure of the cut-olil valve is permitted to rise and to close the conduit so as to stop the flow through the members 6, 9, 10 and the other parts of the nozzle.

From the foregoing, it will be seen that I have provided a very convenient, effective and thoroughly practical means for varying and stopping the flow of spraying liquid, in the manner previously explained, and which can be manufactured and maintained at a moderate cost.

Although I have described this embodiparting from the scope of the inventive ideas as implied and claimed.

I/Vhat I claim as my invention is:

1. In a spray pole unit, the combination of a tubular member, a nozzle on one end thereof, a valve in the outlet end of said nozzle, a

second tubular member having a cut-off valve therein, a chamber united with said tubular members and in open communication therewith, an actuating Vmember in said chamber and provided with a shank which extends out through said chamber and is operable to control the cut-off valve, means extending through the first said tubular member and operatively connected to said actuating member and to the first said valve for controlling the latter, said actuating member including a cam-disk which is rotatable by said shank and has a part normally in contact with said cut-off valve for holding it open, the camdisk having a depressed part which is movable into position for permitting said cut-off to close.

2. In a spray pole unit, the combination of a tubular member, a nozzle on one end thereof, a valve in said nozzle, a second tubular member having a cut-off valve therein, a chamber united with said tubular members actuating member in said chamber and provided with a shank which extends out through said chamber and is operable to control the cut-off valve, means extending through the first said tubular member and operatively connected to said actuating member and to the first said valve for controlling the latter, the said actuating member including a cam-disk which is rotatable by said shank and has a part normally in Contact with said cut-off valve for holding it open, the camdisk also having a depressed part movable into position to permit the cut-off valve to close, and a crank-pin to which said means is journalled, said crank-pin being united with said crank-disk in a concentric position with respect to the greater part of the periphery of the cam-disk.

3. In a spray pole unit, the combination of a tubular member, a nozzle on one end thereof, a valve inV the outlet end of said y nozzle, a second tubular member having a cut-o valve therein, a chamber united with said tubular members, and in open communication therewith, an actuating member in said chamber and operable to control the cutoff valve, means extending through the first said tubular memberY and operatively connected to the actuating member and to theV first valve for controlling the latter, and a compression spring to yieldingly hold the lirst said valve closed, the first said valve including a hollow closure member slidably seated in the iirst said tubular member and having an apertured wall, and a connecting element seated in said apertured wall and extending into the hollow of said closure member for connection with said means for controlling the valve.

4. In a spray pole unit, the combination of a tubular member, a. nozzle on one end thereof, a valve in the outlet end of said nozzle, a second tubular member having a cut-olf valve therein, a chamber united with said tubular members-and in open communication therewith, an actuating member in said chamber and including a crank pin, and means including a iexible link having one end j ournaled on the crank pin and having its other end connected to the first said valve for controlling the latter.

5. In a spray pole unit, the combination of a tubular member, a nozzle on one end thereof, a valve in the outlet end of said nozzle, a"second tubular member having a cut-oil' valve therein, a chamber united with said tubular members and in open communication therewith, an. actuating member in said chamber and provided with a shank, a handle on the shank for controlling the actuating o member, said chamber having one side provided With a stuffing box through which said shank extends, the other side of said chamber being originally open, a fluid-tight closure which normally closes the originally open side of said chamber and isremovable to permit of placing' and replacing and lubricating said controlling member, means extending through the first said tubular member and voperatively connected to saidyactuating member and to the first'said Valve for controlling the latter, and said actuating member being provided with means to control'the said cut-off valve.

Y In testimony whereof I aHix my signature. Y

JOSEPH MESSMER. 

